Sheet glass apparatus



Dec. 15, 1931. C. MAMBOURG 1,836,378

SHEET GLASS APPARATUS Filed June 13, 1.927 2 Sheets-Sheet l gnou/Lto@ La Ke C. Mam bou/f? attained;

Dec. 15, 1931. C;` MAMBOURG '1,836,378

SHEET GLASS APPARATUS Filed June l5, 1927 2 Sheets-Sheet 2 /////////V///////// gnou/lolo I uKe C. Mambo ur? struction, and

Patented Dec. l5, Y1931v iJrITED` STATES PATENT .Ori'icizfv i LUKE ammonito, on :minonsrna OHIO, AssIGNOn To LIBBnY-OWENSLFORD COMPANY, *oF- TOLEDO, OHIO, yn CORPORATION orV OHIO GLASS Y srrnnr GLASS APPARATUS Application filed." "J une 1'3,

The present invention `relates to sheetglass apparatus. i

An important object of the invention is to provide ina'glassapparatus wherein a 10 apparatus wherein a deputer is used to form the sheet of glass, means associated with the deputer to permit heatingof the glass around the deputer without interfering with the formation of the-sheet. l'

Other objects and advantages of the invention will become more apparent duringthe course of the following description.-

In the'drawings wherein like numerals are employed to designate` like partsthroughout 20 the same,

i Fig. l isn a Vertical'longitudinal section through a portionof myi'mproved apparatus,

Fig. Qis a fragmentary vertical longitudinal -section'through amodified form of con- Fig. 3 is a similarv View of still another form of construction.

The present invention relates particularly to that type of apparatus using a deputer or a plurality of deputers to form asheet or sheetsof glass. A deputer 'in the glass art refers to a slotted block or slab adapted:A to be arranged in a mass of molten glassin a manner that a sheet may be formed under hydrostatic pressure due to thepfact that the 1 exit or top of theslot in the slab is adapted,V

when in operative position,` to bearranged below the level of the molten mass in which the deputer is disposed.` #Y i f As far `as is known, the `de'puters in the commercial machines used heretofore have beenjformed from a refractory clay.` Due to the refractory clay and otherfconditions, the glass surrounding the deputer4 or deput'ers very shortlybecomessolidified lVhen'this 1927.V serialv No. 198,396;

condition exists, it is necessary for molten glass to pass down beneath the solidified glass and then through the slot vinthe deputer. Of

course, thissolidiiied or devitrified glassv is objectionable and-.detrimentaltothe formation of a high quality sheet of glass. i As the formation ofl this devitrified glass iscomu paratively rapid, it is necessary lto shut down Y the machine frequently to remove such glass.

The present, invention has been designed to eliminate as far as possible'theformation of devitrified glass calledlin the Vart dogmetal; The dog-metal has a tendency to break off and when it enters the sheet causes' considerable trouble. l y 1 Referring to the drawings, lthe numeral 5 designatesa receptacle adapted to contain a mass of molten glass 6. In the construction shown in Fig. l, a plurality of deputers 7, each having a slot 8,.areA adapted to be arranged in the mass of molten glass in a manner that a sheet 9 may be formed with eachl deputer. l It will be seen that the top of the s lot 8 is arranged below the surfaceof the moltenmass 6 so that the sheet will be formed under hydrostatic pressure. Any form of drawing or conveying means may beused to draw the sheet 9, and I have illustrated, diagrammatically, rolls 10. Arranged over the receptacle 5 is ahood or cap 11 which may be provided with a plurality of depending aprons or curtain walls 12, each curtain wall being a'rrangedpreferably on each side ofthe deputer 7. lEach of the curtain walls vis provided with a suitable slot 13 Vadapted to support one end of va lip tile 14. As shown, two y lip tiles are associated with each deputer, one

endof thelip tile beingassociatedV directly Y to hold the deputers in ade'pressed position or the deputers'may "be supported by other am@ al all@ mail tho lip tios. ln,

any event, the lip tiles will effectively protect the sheets 9 from the heat and gases present around the receptacle.

To prevent excessive cooling of the molten glass burners l5 or othei` heating means are arranged on each side of the deputers, while additional burners 16 may be arranged between the deputers as shown.

In the construction shown in Fig. 1, the molten glass flows into the receptacle 6 from any suitable source. Some of the glass is used by the first deputer, while the remaining glass passes on to the next deputer and so on. It may be preferable to have each deputer separate, in a chamber by itself, in which case the glass does not have to pass under one deputer in order to reach the others.

By using heating means, the glass as itV reaches the last deputer will not be unduly chilled. In fact, any desired temperature canl be created around each deputer.

In Fig. 2, a single deputer 17 is usedinconjunction with a=draw pot 18,- the depth of' the pot 18 being such that the deputer can be arranged in operative position andl still leave a` substantial: distance between the bottom of the deputer and the bottom of the pot. The-molten glass 191may be continuously'supplied to the drawpot and deputer from a tank furnace 20. Lip tiles-2l are associated with the deputer in a manner to protect the sheet 22. Heating means 23 are provided to assist in maintainingthe molten glass at the proper temperature suitable for. being formed into al commerciali sheet.

InFig.v 3 the deputers are so arrangedV that al single lip tile 24 may be associated with two adjacent' deputers. Of course, in all in-A stances, heating means 25 are preferably used between the deputers to prevent chilling of the glass.

By using, the lip tiles and heating means abovedescribed, the/molten glass will not be- A come solidified as is common in the types of machines now used. Consequently, the necessity for frequent shut downs is eliminated', while the conditiony of the glass will also be improved.

rIfhe deputers may be formed from refractory clay or from any'non-corrosive metal or the like. The deputers may also be internally heated as by the means 26 arranged therewithin. It will beseen that an apparak tus has been disclosed whereby a deputer or a plurality ofY deputer-s may be placed in an operative position within a mass of molten glass to produce a sheet or a plurality of sheets of glass. Further, by using heating means as shown, the glass may be properly conditioned so that llassV of the right consistency will be furnished to each deputer.

It is to be understood that the form of the inventioir herewith shown and described is to be taken as the preferred embodiment of shape, size and arangement of parts may be resorted to Without departing from the spirit of the invention or the scope of the subjoined claims.

Claims:

l. In sheet glass apparatus, a receptacle containing a mass of molten glass, a deputer arranged therein, and substantially horizon tal lip tiles positioned above the receptacle and covering the molten glass thereinvat opposite sides-of the deputer, the inner adjacent ends of the lip tiles engaging said deputer.

2. In sheet glass apparatus, a receptacle containing a mass of molten glass, a deputer arrangedtherein, substantially horizontal lip tiles positioned above the receptacle and covering the moltenglass therein at opposite sides of the deputer, the inner adjacent ends of the lip tiles engagingy said deputer, and means for heating the glass around thedeputer.

4f. In sheet glass apparatus, a receptacle containing'a mass of molten glass, a deputer arranged within themolten glass and projecting thereabove, substantially horizontal lip tiles positioned above the receptacle and covering the molten glass thereinat opposite sides of the deputer, the inner adjacent ends ofV the lip tiles engaging said deputer and being spaced above the mass of molten, glass, and heating means positioned beneath the lip tiles at opposite sides ot said deputer.

4. In sheet. glass apparatus, a receptacle containing a= mass of molten glass and provided with a cap,.a deputer arranged within the massof molten glass, depending curtain walls carried by said cap and located at opposite sides of the deputer, lip tiles extending between the curtain walls and deputer and adapted to engage the latter, said cap, curtain walls and lip tiles cooperating to form a substantially closed drawing chamber, and heating means located beneath the lip ltiles at opposite sides of said deputer.

5. In sheet glass apparatus, a receptacle containing a mass of molten glass and provided with a cap, a deputer arranged within the mass of molten glass, vertical curtain walls depending from said cap and located at opposite sides of the deputer, substantially horizontal lip tiles extending between the curtain walls and deputer with the inner adjacent ends of the lip tiles resting upon the latter, said cap, curtain` walls, and lip tiles cooperating toform a substantially closed drawing chamber.

6. In sheet glass apparatus, a receptacle containing a mass of molten glass and provided with a cap, a deputer arranged within the mass of molten glass,vertical curtain Walls depending `from said cap and located at opposite sides of the deputer, substantially horizontal lip.` tiles extending between` the curllt) tain Walls and deputer with theinner adjacent ends of the lip tiles resting upon the latter, said cap, curtain walls, and lip tiles cooperating to form a substantially closed drawing chamber, and heating means located beneath the lip tiles at opposite sides of said de uter. f

igned at Lancaster, in the county of Fairfield and State of Ohio, this 9th day of June,

LUKE C. MAMBOURG; 

